Malicious PDF — malware analysis report

Static analysis result for SHA-256 1361b59ee47f52ac…

MALICIOUS

PDF

33.6 KB Created: 2021-07-19 07:41:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-24
MD5: 625b3a74f5edcb1cc60e8d17cef2786d SHA-1: 45c078ac6c66ea44aa91931f5f25f02872f0530c SHA-256: 1361b59ee47f52ac1ee3a5512561ba7920421db3e2e84cd1d664572c1a2d3565
200 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document employs a fake CAPTCHA lure to trick users into clicking a malicious link. The primary link, http://netcdn.tw/app/479516143/minecraft-pe-free-download-ios-no-jailbreak-game-hack, is identified as a known malicious redirector. The document's content and embedded links suggest a phishing attempt for game-related cheats or hacks, likely leading to further malware or scams. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9942

Heuristics 5

  • PDF links to a 'free generator / game hack' redirector critical PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
    Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://netcdn.tw/app/479516143/minecraft-pe-free-download-ios-no-jailbreak-game-hack In PDF document text
    • https://abouttimetech.com/images/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • https://abouttimetech.com/images/minecraft-free-download-unblocked_GM479516143.pdfIn PDF document text
    • https://abouttimetech.com/images/minecraft-on-computer-free_GM479516143.pdfIn PDF document text
    • https://abouttimetech.com/images/roblox-hack-tool_GM431946152.pdfIn PDF document text
    • https://abouttimetech.com/images/free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • https://abouttimetech.com/images/how-to-hack-a-roblox-account-easy_GM431946152.pdfIn PDF document text
    • https://abouttimetech.com/images/how-to-install-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://abouttimetech.com/images/free-robux-generator-com-roblox-hack_GM431946152.pdfIn PDF document text
    • https://abouttimetech.com/images/how-to-get-free-robux-without-verifying_GM431946152.pdfIn PDF document text
    • https://abouttimetech.com/images/how-to-free-robux_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002cc4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2CC4 22644 bytes
SHA-256: cb315ef16de83bff9917ddf02def19f9da3183db453a04b593bad7e5a8a70e8e
font_01_sfnt_off00005f5b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F5B 18940 bytes
SHA-256: 384c56943b2f0ce7dd032d42d48bdddf0ac3b313714fbbfa672311f45c441041

Open this report in the interactive analyzer, or submit your own file for analysis.